(CP5) - Coronal Mass Ejections (CMEs) and Interplanetary Dynamics Print


Triggered by still unknown mechanisms, these spectacular explosive phenomena emit a huge amount of mass and magnetic flux into the heliosphere, thereby disrupting the interplanetary medium and causing important disturbances in the Earth's magnetosphere (hence in communication and navigation systems and space missions). Our goal is to investigate onset criteria for such solar eruptions and model their full dynamical phase, from initiation to arrival at Earth's orbit. Complex magnetic field topologies determined by extrapolations and full disk magnetogram data will be incorporated. We target 3D multi-fluid computations of transmagnetosonic wind models, and detailed comparison with multi-spacecraft observations (SOHO, STEREO, Solar-B).